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|Microwave Freq.:||10.525 GHz, Pulsed||Input Voltage:||10 To 16 VDC, 12 VDC Nominal|
|Pyro Type:||Dual Element||Pulse Count:||Jumper Selectable: PC2, PC4|
|Warm-up Time:||< 50 Seconds||Alarm Period:||2.4 Seconds, Retriggerable|
|Visual Indicator:||Red Alarm LED (Selectable On / Off)||Weight:||3.7 Oz / 105 G|
|Environmental:||95% Humidity Non-condensing||Mounting Way:||Wall Mounted|
passive infrared motion sensor,
passive infrared motion detector
QT-40 Dual Element Ceiling ceiling mounted Pir Sensor
|Microwave Freq.||10.525 GHz, pulsed|
|Input Voltage||10 to 16 VDC, 12 VDC nominal|
|Input Current||15 mA max. (SL model 30 mA), 11 mA quiescent (approx.)|
|Pyro Type||Dual Element|
|Pulse Count||Jumper selectable: PC2, PC4|
|Warm-up Time||< 50 seconds|
|Alarm Period||2.4 seconds, retriggerable|
|Visual Indicator||Red Alarm LED (Selectable On / Off)|
|Alarm Output||NC, solid state, 19 VDC, 100 mA, 13 ohms resistance typ.|
|Tamper Output||NC, dry contact, 30 VDC, 500 mA, 5 W max.|
|Mounting Height||7 to 8.5 ft (2.1 to 2.6 m)|
|Operating Temp.||14° to 131° F (-10° to+55° C)|
|Environmental||95% humidity non-condensing|
|Weight||3.7 oz / 105 g|
|Dimensions||4.8” H x 2.5” W x 1.7” D / 12.2cm x 6.4cm x 4.3cm|
Available with 40-foot and 60-foot protection patterns, QT Series intrusion detectors provide high quality PIR+microwave security at an outstanding value. Aleph’s unique “QT” signal processing evaluates PIR and microwave information while factoring in ambient temperature and light for superior “Quad-Tech” performance. The Security Light feature adds safety lighting, providing a soft white light when triggered in a darkened room.
Microwave Sensitivity: Microwave Sensitivity Adjustment is set to the fully clockwise position at the factory for maximum sensitivity (range). The installation in a small room, it may be desirable to reduce microwave sensitivity. Turn the Microwave Sensitivity Adjustment (Fig. 2) counter-clockwise to reduce sensitivity. Setting the adjustment to minimum (fully counter-clockwise) reduces sensitivity to approximately one-third of its maximum value.
|Unit does not power up.||No or low input power.
Input power polarity reversed.
|Apply proper input voltage. Correct wiring polarity.|
|Alarm LED does not light.||LED jumper is set to “LED OFF”.
Incorrect sensor mounting height or aiming. Pulse count setting incorrect for protection area .
|Set LED jumper to“LED ENABLED”. Alter the mounting height or aim.
Set pulse count jumper to suit the detection requirements.
|Alarm LED / Relaytriggers without movement in the protection area.||Animals / rodents in protection area. Heating or air conditioning outlets in sensor view.
If using the optional animal immune lens: Pet access to furniture or room fixture in view of the detector.
|Block access of animals / rodents. Re-aim sensor.
Ensure that pets can not climb up onto furniture / fixtures in protection area.
|An alarm is indicated at the LED but not at the alarm output.||Incorrect wiring at the alarm output terminals.
|Correct the wiring fault.
|Alarm LED on constantly, no fault in protected area or wiring .||Defective unit.||Replace sensor.|
|Unit continues to operate after input power has been disconnected.||The wire to the power input was disconnected, the “+” is still connected. The power is finding a return path through the Alarm Output protection device and alarm wiring.||Disconnect wire from the “+” power input.|
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